JPH07321550A - Antenna system - Google Patents

Antenna system

Info

Publication number
JPH07321550A
JPH07321550A JP6106764A JP10676494A JPH07321550A JP H07321550 A JPH07321550 A JP H07321550A JP 6106764 A JP6106764 A JP 6106764A JP 10676494 A JP10676494 A JP 10676494A JP H07321550 A JPH07321550 A JP H07321550A
Authority
JP
Japan
Prior art keywords
electrode
antenna
dielectric substrate
electrodes
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6106764A
Other languages
Japanese (ja)
Inventor
Yasuaki Saito
泰章 斎藤
Kazuya Kawabata
一也 川端
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP6106764A priority Critical patent/JPH07321550A/en
Priority to US08/427,415 priority patent/US5898403A/en
Publication of JPH07321550A publication Critical patent/JPH07321550A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To provide the small sized and inexpensive antenna system with a small reflection loss. CONSTITUTION:This antenna system is provided with an antenna section 1 formed by laminating a dielectric board 2 with a radiation electrode 2a formed thereon, dielectric boards 3, 4 being dummy layers, and a dielectric board 5 with a ground electrode 5a formed thereto onto its upper side, with a filter section 11 comprising the lamination of dielectric boards 12-15 formed by laminating trimming electrodes 12a, 12b, shield electrodes 13a, 13b, capacitor electrodes 14a, 14b, and coil electrodes 15a, 15b below the antenna section 1, and a via-hole 16 is made from a feeding point 2b of the radiation electrode 2a to the shield electrode 13a of the dielectric board 13, and external electrodes 21-28 connecting to the trimming electrodes 12a, 12b, the shield electrodes 13a, 13b, the capacitor electrodes 14a, 14b and the coil electrodes 15a, 15b are formed on the side face of the boards 2-21.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、アンテナとフィルタと
を一体化したアンテナ装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device in which an antenna and a filter are integrated.

【0002】[0002]

【従来の技術】従来の例えば車載用のGPS(Global P
ositioning System)装置に用いられるアンテナ周辺のブ
ロック図は図5に示すように、アンテナ,フィルタ,プ
リアンプ及びレシーバで構成され、アンテナで受信した
信号は、次段のフィルタで所望の周波数に選択され、プ
リアンプを経由してレシーバに伝送される。このうち、
アンテナ及びフィルタは、図6に示すように、上下面に
電極パターン51a,51bが形成されたプリント基板
51の上面に、誘電体基板52の表面に放射電極53が
形成され、裏面にグランド電極54が形成されたマイク
ロストリップ型のアンテナ55が搭載され、プリント基
板51の下面にフィルタ56が搭載されて、アンテナ装
置57が構成されている。
2. Description of the Related Art A conventional GPS (Global P
As shown in FIG. 5, the block diagram around the antenna used in the ositioning system) device is composed of an antenna, a filter, a preamplifier and a receiver, and a signal received by the antenna is selected to a desired frequency by a filter in the next stage, It is transmitted to the receiver via the preamplifier. this house,
As shown in FIG. 6, in the antenna and the filter, the radiation electrode 53 is formed on the surface of the dielectric substrate 52 and the ground electrode 54 is formed on the upper surface of the printed board 51 having the electrode patterns 51a and 51b formed on the upper and lower surfaces. The microstrip type antenna 55 in which is formed is mounted, the filter 56 is mounted on the lower surface of the printed circuit board 51, and the antenna device 57 is configured.

【0003】そして、アンテナ55の放射電極53の給
電点53aから、プリント基板51の裏面の電極パター
ン51aの一端にかけて給電線58が接続され、電極パ
ターン51aの他端にフィルタ56が取り付けられ、ア
ンテナ55の放射電極53で受信された電波が、給電線
58及び電極パターン51aを介してフィルタ56に伝
送される。なお、アンテナ55のグランド電極54は、
プリント基板51の電極パターン51bと接続されグラ
ンドに接続されている。
A feeding line 58 is connected from the feeding point 53a of the radiating electrode 53 of the antenna 55 to one end of the electrode pattern 51a on the back surface of the printed board 51, and a filter 56 is attached to the other end of the electrode pattern 51a. The radio wave received by the radiation electrode 53 of 55 is transmitted to the filter 56 via the power supply line 58 and the electrode pattern 51a. The ground electrode 54 of the antenna 55 is
It is connected to the electrode pattern 51b of the printed board 51 and is connected to the ground.

【0004】[0004]

【発明が解決しようとする課題】ところが、上記従来の
アンテナ装置57においては、アンテナ55とフィルタ
56を個別に作らなくてはならず、また、プリント基板
51への実装も別々に行う必要があるため、部品コスト
及び実装コストが高くなるとともに、アンテナ装置57
のサイズが大きくなっていた。また、アンテナ55とフ
ィルタ56が電極パターン51aで接続されているた
め、アンテナ55とフィルタ56のインピーダンス整合
が乱れて反射損失が増加し、信号の伝送ロスが大きくな
っていた。
However, in the above-described conventional antenna device 57, the antenna 55 and the filter 56 have to be individually formed, and the mounting on the printed circuit board 51 needs to be performed separately. Therefore, the component cost and the mounting cost are increased, and the antenna device 57 is used.
Was getting bigger. Further, since the antenna 55 and the filter 56 are connected by the electrode pattern 51a, the impedance matching between the antenna 55 and the filter 56 is disturbed, the reflection loss increases, and the signal transmission loss increases.

【0005】本発明は、このような問題を解消するため
になされたものであり、積層誘電体基板内にアンテナ部
とフィルタ部とを一体に構成して、小型で反射損失が少
なく安価なアンテナ装置を提供することを目的とするも
のである。
The present invention has been made in order to solve such a problem, and is a small-sized and inexpensive antenna having a small reflection loss by integrally forming an antenna section and a filter section in a laminated dielectric substrate. The purpose is to provide a device.

【0006】[0006]

【課題を解決するための手段】上記の目的を達成するた
めに、本発明においては、積層誘電体基板の表面に形成
された放射電極と、前記積層誘電体基板の内部に形成さ
れたグランド電極とからなるアンテナ部と、前記積層誘
電体基板の内部のアンテナ部の下部に形成されたシール
ド電極、コンデンサ電極及びコイル電極からなるフィル
タ部とを有し、前記アンテナ部の給電点と、前記フィル
タ部の入力部とがビアホールで接続され、前記積層誘電
体基板の側面に、前記アンテナ部のグランド電極及びフ
ィルタ部の出力部と接続された外部電極が形成されたこ
とを特徴とするものである。
In order to achieve the above object, in the present invention, a radiation electrode formed on the surface of a laminated dielectric substrate and a ground electrode formed inside the laminated dielectric substrate. And a filter portion including a shield electrode, a capacitor electrode and a coil electrode formed below the antenna portion inside the laminated dielectric substrate, and a feeding point of the antenna portion and the filter. And an external electrode connected to the ground electrode of the antenna section and the output section of the filter section are formed on the side surface of the laminated dielectric substrate. .

【0007】また、前記放射電極とグランド電極との間
に、スロットを有するスロット電極と、前記スロットと
直交するストリップラインとをさらに備えたことを特徴
とするものである。
Further, it is characterized in that a slot electrode having a slot and a strip line orthogonal to the slot are further provided between the radiation electrode and the ground electrode.

【0008】[0008]

【作用】上記の構成によれば、アンテナ部とフィルタ部
が積層誘電体基板の内部に一体に構成されているため、
アンテナ装置が小型になり、製造工程が簡略化され、プ
リント基板への実装が表面実装により一度で行うことが
できる。また、アンテナ部の給電点とフィルタ部の入力
部が、内部のビアホールで最短距離で接続されているた
め、アンテナ部とフィルタ部のインピーダンス整合に乱
れがなくなり反射損失を低下することができる。
According to the above structure, since the antenna part and the filter part are integrally formed inside the laminated dielectric substrate,
The antenna device is downsized, the manufacturing process is simplified, and mounting on a printed circuit board can be performed at once by surface mounting. Further, since the feeding point of the antenna section and the input section of the filter section are connected by the internal via hole at the shortest distance, the impedance matching between the antenna section and the filter section is not disturbed and the reflection loss can be reduced.

【0009】[0009]

【実施例】以下、本発明によるアンテナ装置の実施例を
図1乃至図4を用いて説明する。図1及び図2に本発明
の第一の実施例によるアンテナ装置を示す。図1はアン
テナ装置の斜視図であり、1は第1〜第4の誘電体基板
2〜5が積層され、上面に放射電極2aが形成され、内
部にグランド電極(図示せず)が形成されて構成された
マイクロストリップ型のアンテナ部であり、アンテナ部
1の下部には、内部にコイル及びコンデンサを形成する
ための電極(図示せず)を有する第5〜第8の誘電体基
板12〜15が積層されて構成されたLC型のフィルタ
部11が積層され、この積層体の側面に外部電極21〜
28が形成されて、アンテナ装置30が構成されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an antenna device according to the present invention will be described below with reference to FIGS. 1 and 2 show an antenna device according to a first embodiment of the present invention. FIG. 1 is a perspective view of an antenna device. Reference numeral 1 is a stack of first to fourth dielectric substrates 2 to 5, a radiation electrode 2a is formed on the upper surface, and a ground electrode (not shown) is formed inside. The fifth to eighth dielectric substrates 12 to 12 each having an electrode (not shown) for forming a coil and a capacitor inside the antenna section 1 are microstrip type antenna sections. The LC type filter unit 11 constituted by laminating 15 is laminated, and the external electrodes 21 to
28 is formed, and the antenna device 30 is configured.

【0010】図2にアンテナ装置30の分解斜視図を示
す。図2において、アンテナ部1は第1〜第4の誘電体
基板2〜5が積層されて構成され、誘電体基板2の上面
に放射電極2aが形成され、誘電体基板5の上面に、端
部が外部電極22,23,25〜28に接続されたグラ
ンド電極5aが形成されている。また、誘電体基板3,
4は、誘電体基板2,5の間に積層されアンテナ部1の
Q値を得るためのダミー層となり、その段数は任意に設
定される。
FIG. 2 shows an exploded perspective view of the antenna device 30. In FIG. 2, the antenna unit 1 is configured by stacking first to fourth dielectric substrates 2 to 5, a radiation electrode 2 a is formed on the upper surface of the dielectric substrate 2, and an end portion is formed on the upper surface of the dielectric substrate 5. A ground electrode 5a whose part is connected to the external electrodes 22, 23, 25 to 28 is formed. In addition, the dielectric substrate 3,
4 is a dummy layer that is laminated between the dielectric substrates 2 and 5 to obtain the Q value of the antenna unit 1, and the number of stages thereof is set arbitrarily.

【0011】一方、フィルタ部11は第5〜第8の誘電
体基板12〜15が積層されて構成されている。このう
ち、誘電体基板12の上面には、一対のトリミング電極
12a,12bが形成され、トリミング電極12a,1
2bのそれぞれの両端が誘電体基板12の対向する長辺
側縁部の中央部付近に引き出され、外部電極22,2
3,26,27に接続されている。なお、誘電体基板1
2は、トリミング電極12a,12bによりフィルタ部
11の共振周波数を調整するものであるが、省略するこ
とも可能である。
On the other hand, the filter section 11 is constructed by laminating fifth to eighth dielectric substrates 12 to 15. Of these, a pair of trimming electrodes 12 a and 12 b are formed on the upper surface of the dielectric substrate 12, and the trimming electrodes 12 a and 1
Both ends of 2b are drawn out to the vicinity of the central portion of the opposite long side edges of the dielectric substrate 12, and the external electrodes 22, 2
3, 26, 27. The dielectric substrate 1
Reference numeral 2 adjusts the resonance frequency of the filter unit 11 by the trimming electrodes 12a and 12b, but it can be omitted.

【0012】また、誘電体基板13の上面には、一対の
シールド電極13a,13bが形成され、シールド電極
13a,13bのそれぞれの一端が、誘電体基板13の
一方の長辺側縁部の両端部に引き出され、外部電極2
1,24に接続されている。なお、シールド電極13a
及び外部電極21は、フィルタ部11の入力部となる。
A pair of shield electrodes 13a and 13b is formed on the upper surface of the dielectric substrate 13, and one end of each of the shield electrodes 13a and 13b is at both ends of one long side edge of the dielectric substrate 13. External electrode 2
1 and 24 are connected. The shield electrode 13a
The external electrode 21 serves as an input unit of the filter unit 11.

【0013】また、誘電体基板14の上面には、一対の
コンデンサ電極14a,14bが形成され、コンデンサ
電極14a,14bのそれぞれの両端が、誘電体基板1
4の対向する長辺側縁部の中央部付近に引き出され、外
部電極22,23,26,27に接続されている。
A pair of capacitor electrodes 14a and 14b are formed on the upper surface of the dielectric substrate 14, and both ends of each of the capacitor electrodes 14a and 14b are formed on the dielectric substrate 1.
4 is extended to the vicinity of the central portion of the opposite long side edges, and is connected to the external electrodes 22, 23, 26, 27.

【0014】さらに、誘電体基板15の上面には、一対
のコイル電極15a,15bが形成され、コイル電極1
5a,15bのそれぞれの一端が、誘電体基板15の一
方の長辺側縁部の両端部に引き出されて外部電極21,
24に接続され、コイル電極15a,15bのそれぞれ
の他端が、誘電体基板15の他方の長辺側縁部の中央部
付近に引き出されて外部電極26,27に接続されてい
る。なお、外部電極24は、フィルタ部11の出力部と
なる。
Further, a pair of coil electrodes 15a and 15b are formed on the upper surface of the dielectric substrate 15, and the coil electrode 1
One end of each of 5a and 15b is drawn out to both ends of one long side edge of the dielectric substrate 15 to form the external electrode 21,
24, and the other ends of the coil electrodes 15a and 15b are led out to the vicinity of the central portion of the other long side edge of the dielectric substrate 15 and connected to the external electrodes 26 and 27. The external electrode 24 serves as an output unit of the filter unit 11.

【0015】そして、アンテナ部1とフィルタ部11が
積層され、アンテナ部1の放射電極2aの給電部2bか
ら、誘電体基板2,3,4,5,12を貫通し、フィル
タ部11の誘電体基板13のシールド電極13aにかけ
て、内部に電極が充填されたビアホール16が形成さ
れ、アンテナ部1の給電点2bとフィルタ部11の入力
部が接続されている。なお、誘電体基板5のグランド電
極5aには、ビアホール16と絶縁するため切り欠き5
bが形成されている。
Then, the antenna part 1 and the filter part 11 are laminated, and the dielectric substrate 2, 3, 4, 5, 12 is penetrated from the feeding part 2b of the radiation electrode 2a of the antenna part 1 to the dielectric part of the filter part 11. A via hole 16 having an electrode filled therein is formed over the shield electrode 13a of the body substrate 13, and the feeding point 2b of the antenna unit 1 and the input unit of the filter unit 11 are connected to each other. The ground electrode 5a of the dielectric substrate 5 has a cutout 5 for insulating the via hole 16.
b is formed.

【0016】このアンテナ装置30の実装方法は、誘電
体基板15の下面が、電極パターンが形成されたプリン
ト基板(図示せず)に表面実装され、外部電極21〜2
8と電極パターンがはんだ付けされて行われる。
In the method of mounting the antenna device 30, the lower surface of the dielectric substrate 15 is surface-mounted on a printed circuit board (not shown) on which an electrode pattern is formed, and the external electrodes 21 to 2 are mounted.
8 and the electrode pattern are soldered.

【0017】ここで、アンテナ装置30の等価回路を図
3に示す。このうち、コンデンサC1,C2は、誘電体
基板13のシールド電極13a,13bと誘電体基板1
2のトリミング電極12a,12bとの間で形成され、
トリミング電極12a,12bの電極面積を調整するこ
とによりフィルタ部11の共振周波数を調整することが
できる。また、コンデンサC3,C4は、誘電体基板1
3のシールド電極13a,13bと誘電体基板14のコ
ンデンサ電極14a,14bとの間で形成され、また、
コイルL1,L2は、誘電体基板15のコイル電極15
a,15bで形成される。
An equivalent circuit of the antenna device 30 is shown in FIG. Of these, the capacitors C1 and C2 are the shield electrodes 13a and 13b of the dielectric substrate 13 and the dielectric substrate 1 respectively.
Formed between the two trimming electrodes 12a and 12b,
The resonance frequency of the filter unit 11 can be adjusted by adjusting the electrode areas of the trimming electrodes 12a and 12b. Further, the capacitors C3 and C4 are the dielectric substrate 1
3 between the shield electrodes 13a and 13b and the capacitor electrodes 14a and 14b of the dielectric substrate 14, and
The coils L1 and L2 are the coil electrodes 15 of the dielectric substrate 15.
a, 15b.

【0018】このように構成されたアンテナ装置30
は、アンテナ部1とフィルタ部11が積層されて一体に
構成されているため、アンテナ装置として小型になり、
製造工程が簡略化し、プリント基板への実装も表面実装
により一度で行うことができる。また、アンテナ部1の
給電点2bとフィルタ部11の入力部とが、ビアホール
16により最短距離で接続されているため、アンテナ部
1とフィルタ部11のインピーダンス整合に乱れが生じ
ない。
The antenna device 30 thus constructed
Since the antenna unit 1 and the filter unit 11 are laminated and integrally configured, the antenna device becomes small in size,
The manufacturing process is simplified, and mounting on a printed circuit board can be performed at once by surface mounting. Further, since the feeding point 2b of the antenna unit 1 and the input unit of the filter unit 11 are connected by the via hole 16 at the shortest distance, the impedance matching between the antenna unit 1 and the filter unit 11 is not disturbed.

【0019】次に、図4に本発明の第二の実施例による
アンテナ装置のアンテナ部を示す。なお、フィルタ部は
アンテナ装置30と同一のため省略し、アンテナ部のみ
を図示して説明する。図4において、41は上面に放射
電極41aを形成した第9の誘電体基板であり、誘電体
基板41の下面には、ダミー層となる第10,11の誘
電体基板42,43が配置され、誘電体基板43の下面
には、上面のほぼ中央部に短辺と平行にスロット44a
を有するスロット電極44bが形成された、第12の誘
電体基板44が配置されている。
Next, FIG. 4 shows an antenna portion of an antenna device according to a second embodiment of the present invention. Since the filter unit is the same as the antenna device 30, it is omitted, and only the antenna unit is illustrated and described. In FIG. 4, reference numeral 41 denotes a ninth dielectric substrate having a radiation electrode 41a formed on its upper surface, and tenth and eleventh dielectric substrates 42, 43 to be dummy layers are arranged on the lower surface of the dielectric substrate 41. On the lower surface of the dielectric substrate 43, a slot 44a is formed substantially in the center of the upper surface in parallel with the short side.
A twelfth dielectric substrate 44, on which a slot electrode 44b having a is formed, is arranged.

【0020】さらに、誘電体基板44の下面には、上面
に誘電体基板44のスロット44aと直交するストリッ
プライン45aを有する第13の誘電体基板45が配置
され、誘電体基板45の下面には、上面に端部が外部電
極22,23,25〜28に接続されたグランド電極4
6aを有する第14の誘電体基板46が配置されてい
る。そして、内部に電極が充填されたビアホール47
が、誘電体基板45のストリップライン45aの給電点
45bから、誘電体基板45,46を貫通し誘電体基板
46の下面にその一端が露出して形成され、スロット型
のアンテナ部48が構成されている。なお、誘電体基板
46のグランド電極46aには、ビアホール47と絶縁
するため切り欠き46bが形成されている。
Further, a thirteenth dielectric substrate 45 having a strip line 45a orthogonal to the slots 44a of the dielectric substrate 44 is arranged on the lower face of the dielectric substrate 44, and the lower face of the dielectric substrate 45 is arranged on the lower face. , The ground electrode 4 whose upper end is connected to the external electrodes 22, 23, 25 to 28
A fourteenth dielectric substrate 46 having 6a is arranged. Then, the via hole 47 having the electrode filled therein
However, from the feeding point 45b of the strip line 45a of the dielectric substrate 45, one end of the dielectric substrate 45 is penetrated and formed on the lower surface of the dielectric substrate 46 to form a slot type antenna section 48. ing. The ground electrode 46a of the dielectric substrate 46 is provided with a notch 46b to insulate it from the via hole 47.

【0021】このように構成されたアンテナ部48は、
その下部にフィルタ部11が積層され、ビアホール47
がフィルタ部11の誘電体基板12のビアホール16と
接続されて、アンテナ装置を構成し、アンテナ装置30
と同一の効果を有する。
The antenna section 48 thus constructed is
The filter portion 11 is laminated below the via hole 47.
Is connected to the via hole 16 of the dielectric substrate 12 of the filter portion 11 to form an antenna device, and the antenna device 30
Has the same effect as.

【0022】[0022]

【発明の効果】以上説明したように、本発明にかかるア
ンテナ装置によれば、積層誘電体基板の内部にアンテナ
部とフィルタ部が一体に構成されているため、アンテナ
装置が小型になり、製造工程が簡略化され、しかも、プ
リント基板への実装が表面実装により一度で行うことが
できるため、部品コスト及び実装コストが安価なアンテ
ナ装置を提供することができる。さらに、アンテナ部と
フィルタ部の接続が、アンテナ装置の内部で最短距離で
行われるため、アンテナ部とフィルタ部のインピーダン
ス整合に乱れがなくなり、反射損失が低下して、信号ロ
スの少ない伝送が可能になる。
As described above, according to the antenna device of the present invention, since the antenna part and the filter part are integrally formed inside the laminated dielectric substrate, the antenna device is downsized and manufactured. Since the process can be simplified and the mounting on the printed board can be performed at once by surface mounting, it is possible to provide an antenna device with low component cost and mounting cost. Furthermore, since the connection between the antenna unit and the filter unit is made within the shortest distance inside the antenna device, the impedance matching between the antenna unit and the filter unit is not disturbed, and the reflection loss is reduced, enabling transmission with less signal loss. become.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第一の実施例によるアンテナ装置の斜
視図である。
FIG. 1 is a perspective view of an antenna device according to a first embodiment of the present invention.

【図2】図1の分解斜視図である。FIG. 2 is an exploded perspective view of FIG.

【図3】図1の等価回路図である。FIG. 3 is an equivalent circuit diagram of FIG.

【図4】本発明の第二の実施例によるアンテナ装置のア
ンテナ部の分解斜視図である。
FIG. 4 is an exploded perspective view of an antenna unit of an antenna device according to a second embodiment of the present invention.

【図5】従来のGPS受信機のブロック図である。FIG. 5 is a block diagram of a conventional GPS receiver.

【図6】従来のアンテナ装置の側面図である。FIG. 6 is a side view of a conventional antenna device.

【符号の説明】[Explanation of symbols]

1,48 アンテナ部 2〜5 誘電体基板 2a,41a 放射電極 2b,45b 給電点 5a,46a グランド電極 11 フィルタ部 12〜15 誘電体基板 12a,12b トリミング電極 13a,13b シールド電極 14a,14b コンデンサ電極 15a,15b コイル電極 16,47 ビアホール 21〜28 外部電極 30 アンテナ装置 41〜46 誘電体基板 44b スロット電極 45a ストリップライン 1, 48 Antenna part 2-5 Dielectric substrate 2a, 41a Radiating electrode 2b, 45b Feeding point 5a, 46a Ground electrode 11 Filter part 12-15 Dielectric substrate 12a, 12b Trimming electrode 13a, 13b Shield electrode 14a, 14b Capacitor electrode 15a, 15b Coil electrode 16,47 Via hole 21-28 External electrode 30 Antenna device 41-46 Dielectric substrate 44b Slot electrode 45a Strip line

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 積層誘電体基板の表面に形成された放射
電極と、前記積層誘電体基板の内部に形成されたグラン
ド電極とからなるアンテナ部と、前記積層誘電体基板の
内部のアンテナ部の下部に形成されたシールド電極、コ
ンデンサ電極及びコイル電極からなるフィルタ部とを有
し、前記アンテナ部の給電点と、前記フィルタ部の入力
部とがビアホールで接続され、前記積層誘電体基板の側
面に、前記アンテナ部のグランド電極及びフィルタ部の
出力部と接続された外部電極が形成されたことを特徴と
するアンテナ装置。
1. An antenna section comprising a radiation electrode formed on the surface of a laminated dielectric substrate and a ground electrode formed inside the laminated dielectric substrate, and an antenna section inside the laminated dielectric substrate. A filter part formed of a shield electrode, a capacitor electrode and a coil electrode formed on the lower part, and a feeding point of the antenna part and an input part of the filter part are connected by a via hole, and a side surface of the laminated dielectric substrate. An antenna device, wherein an external electrode connected to the ground electrode of the antenna section and the output section of the filter section is formed in the antenna.
【請求項2】 前記放射電極とグランド電極との間に、
スロットを有するスロット電極と、前記スロットと直交
するストリップラインとをさらに備えたことを特徴とす
る請求項1に記載のアンテナ装置。
2. Between the radiation electrode and the ground electrode,
The antenna device according to claim 1, further comprising a slot electrode having a slot, and a strip line orthogonal to the slot.
JP6106764A 1994-05-20 1994-05-20 Antenna system Pending JPH07321550A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6106764A JPH07321550A (en) 1994-05-20 1994-05-20 Antenna system
US08/427,415 US5898403A (en) 1994-05-20 1995-04-24 Antenna formed of multiple dielectric substrates including shielded LC filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6106764A JPH07321550A (en) 1994-05-20 1994-05-20 Antenna system

Publications (1)

Publication Number Publication Date
JPH07321550A true JPH07321550A (en) 1995-12-08

Family

ID=14441978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6106764A Pending JPH07321550A (en) 1994-05-20 1994-05-20 Antenna system

Country Status (2)

Country Link
US (1) US5898403A (en)
JP (1) JPH07321550A (en)

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